On Running Launches Cloudmonster 3 With 3D Printed LightSpray Upper

Swiss performance footwear brand On has introduced the third generation of its Cloudmonster series, delivering three specialized models designed to match a variety of running needs. The new lineup — Cloudmonster 3, Cloudmonster 3 Hyper, and LightSpray Cloudmonster 3 Hyper — builds on On's signature CloudTec cushioning while integrating technologies tailored for energy return, responsiveness, and comfort.

Notably, the LightSpray Cloudmonster 3 Hyper uses 3D printing in its upper construction, highlighting how additive manufacturing is being leveraged to optimize fit, reduce weight, and enhance energy transfer.

LightSpray Technology Goes Mainstream

The LightSpray Cloudmonster 3 Hyper is made for runners tackling long runs and tempo sessions. It pairs a 3D printed LightSpray upper with Helion HF hyper foam for responsive, fully cushioned performance.

Built from just eight parts — one upper, two midsole pieces, and five small rubber elements — the upper is formed in under three minutes by a single robot arm, eliminating layers to create a seamless, breathable, form-fitting structure that reduces pressure points.

As the first Cloudmonster model to scale LightSpray beyond earlier limited-availability drops, it marks a broader rollout of the technology. The LightSpray Cloudmonster 3 Hyper debuts with a limited release at on.com and in On retail stores across North America on March 5, followed by a full global launch on April 16, 2026.

3D Printing in Running Footwear

Additive manufacturing has been increasingly explored in performance running shoes to improve fit, energy return, and responsiveness, but most applications concentrate on either the midsole or adjustable fit mechanisms.

On's LightSpray approach takes a distinctly different approach by integrating 3D printing directly into the structural upper. Rather than focusing on personalized tension zones or midsole geometry, the printed upper itself is designed to be lightweight, breathable, and mechanically supportive, enhancing propulsion and stride efficiency for long-distance and tempo runs.

Other brands have taken alternative technical approaches. Nike's patented fit system produces tension-adjustable uppers based on 3D scans of individual feet, prioritizing personalized comfort and adaptive fit. Adidas, in collaboration with Carbon, has used digital light synthesis (DLS) 3D printing to create the 4DFWD midsole, focusing on elite-level energy return and running economy by reducing peak braking forces by 15%.